CN211347820U - Auxiliary device for measuring volume by irrigation method in-situ density test - Google Patents
Auxiliary device for measuring volume by irrigation method in-situ density test Download PDFInfo
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- CN211347820U CN211347820U CN201922292587.9U CN201922292587U CN211347820U CN 211347820 U CN211347820 U CN 211347820U CN 201922292587 U CN201922292587 U CN 201922292587U CN 211347820 U CN211347820 U CN 211347820U
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Abstract
The utility model relates to an auxiliary device that is used for irrigation method volume of measurationing among normal position density test. The utility model aims at providing a simple structure, simple manufacture, the lower normal position density of cost are used for the auxiliary device that the volume was measurationed to the irrigation method in experimental to improve the measurement accuracy. The technical scheme of the utility model is that: an auxiliary device that is used for method of watering to measure volume in situ density test which characterized in that: the soil body leveling device is provided with a measuring lantern ring, a fixing mechanism used for fixing the measuring lantern ring on a leveled compact soil body is arranged at the lower end of the measuring lantern ring, four or more than four scales are arranged on the inner wall of the measuring lantern ring, and the scales are arranged in parallel with the measuring lantern ring in the axial direction.
Description
Technical Field
The utility model relates to an auxiliary device that is used for irrigation method volume of measurationing among normal position density test.
Background
In the engineering construction, for backfill materials, in order to test the rolling quality of backfill construction, the density test detection of the rolled backfill materials is needed, while for the density test of coarse-grained soil materials and large-grained soil materials, the irrigation method is generally adopted for detection, the volume of a test pit is obtained by measuring the mass of water poured into the test pit, and then the wet density of the filling soil materials is obtained by dividing the mass of the soil in the test pit by the volume of the test pit.
In order to reduce errors and ensure that test detection data are objective and accurate, the measurement of the soil quality and the test pit volume in the test pit is particularly critical. Because the general particle diameter of coarse-grained soil filler is great, and the filling rolling surface is unsmooth, it is difficult to the accurate measurement of the volume of water of pouring to directly pouring into the test pit.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: aiming at the existing problems, the auxiliary device for measuring the volume by the irrigation method in the in-situ density test has the advantages of simple structure, simple manufacture and lower cost, so that the measurement precision is improved.
The utility model adopts the technical proposal that: an auxiliary device that is used for method of watering to measure volume in situ density test which characterized in that: the soil body leveling device is provided with a measuring lantern ring, a fixing mechanism used for fixing the measuring lantern ring on a leveled compact soil body is arranged at the lower end of the measuring lantern ring, four or more than four scales are arranged on the inner wall of the measuring lantern ring, and the scales are arranged in parallel with the measuring lantern ring in the axial direction.
The fixing mechanism is provided with a fixing ring arranged at the lower end of the measuring lantern ring, a plurality of fixing drill holes are uniformly formed in the fixing ring, and fixing drill rods are inserted in the fixing drill holes.
The upper end of the measuring lantern ring is provided with a circle of brim.
The inner diameter of the measuring lantern ring is determined according to the maximum grain size of the engineering backfill material, is 2-3 times of the maximum grain size of the backfill material, and is 15cm in height and 0.3cm in thickness.
The utility model has the advantages that: the utility model discloses a measuration lantern ring cooperation scale is supplementary to be carried out the volumetric measurement of water, fills in the horizontal plane of measuration lantern ring water-logging through setting up four on the inner wall of measuration lantern ring and four and the scale cooperation more than four and confirms whether the volume of pouring into lantern ring water-logging, the lantern ring whether are in the horizontality, whether the lantern ring removes around digging test pit to ensure to measure the accuracy.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment. (it is recommended to provide a line drawing of the drawing)
Detailed Description
As shown in fig. 1, the present embodiment is an auxiliary device for measuring the volume of water filled into a measuring collar by irrigation method in an in-situ density test, and the auxiliary device comprises a measuring collar 2, a fixing mechanism is arranged at the lower end of the measuring collar, and a ring of upper brim 3 is arranged at the upper end of the measuring collar 2. Four scales 4 are arranged on the inner wall of the measuring lantern ring 2, the four scales 4 are uniformly arranged on the inner wall of the measuring lantern ring 2, and the scales 4 are arranged in parallel in the axial direction of the measuring lantern ring 2.
In this embodiment, the fixing mechanism has a ring of fixing rings 1 disposed at the lower end of the measuring ring 2, three fixing drill holes 5 are uniformly formed in the fixing rings 1, and fixing drills 6 are inserted into the fixing drill holes 5.
In this example, the width of the fixing ring 1 is 10cm, and the thickness is 0.3 cm; the diameter of the measuring lantern ring 2 is determined according to the maximum grain size of the engineering backfill material, and is generally 2-3 times of the maximum grain size of the backfill material, the height is 15cm, and the thickness is 0.3 cm; the upper brim is 3cm wide and 0.3cm thick; the scale 4 is 2cm wide and 15cm high, scales are arranged on the scale 4, the maximum scale value is 12cm, the minimum scale value is 1cm, and the scale value is 1 mm; the aperture of the fixed drill hole 5 is 2 cm; the diameter of the fixing rod 6 is 1.8cm, and the length is 20 cm.
The method of use of this example is as follows:
the auxiliary device of the embodiment is placed on a leveled and compacted soil body, and is fixed on the soil body by the fixing drill 6, so that the auxiliary device is prevented from moving in the test detection process, and the measurement of the volume of the test pit is prevented from being influenced;
laying a white soft plastic film on the inner side of the measuring lantern ring 2 to enable the white soft plastic film to be tightly attached to the surface of the soil body and the inner side wall of the measuring lantern ring 2 and extend outwards to the outside of the measuring lantern ring 2 along the upper brim 3;
injecting accurately weighed water into the measuring lantern ring 2, performing first water filling until the water level reaches a set initial scale, making scale records of four scales 4, and obtaining the mass of the residual water to obtain the mass of the water filled into the measuring lantern ring 2 for the first time;
then taking off the water and the plastic film filled into the measuring sleeve ring 2, manually excavating a test pit in the measuring sleeve ring 2, keeping the steel sleeve ring from moving in the excavating process, excavating the test pit until the excavating depth of the test pit reaches the next filling layer, and filling the excavated sample into a basket to weigh the mass of the sample;
after the test pit is dug, laying a white soft plastic film in the test pit again, ensuring that the plastic film is tightly adhered to the pit bottom, the pit wall and the inner side wall of the measuring lantern ring, and extending out of the measuring lantern ring 2 along the upper brim;
then, carrying out secondary water injection, injecting water which is accurately weighed into the measuring lantern ring 2, stopping water injection when the water level is the same as the primary initial filling water level, and obtaining the mass of the residual water to obtain the mass of the water filled into the measuring lantern ring 2 for the second time;
calculating the volume of the test pit according to the mass difference between the second time of water injection and the first time of water injection;
and (4) according to the volume of the test pit and the quality of the excavated sample when the test pit is excavated, obtaining the wet density of the filling soil material.
It should be noted that, if any one of the four scales is inconsistent with the initial water level during the second irrigation, it indicates that the measuring lantern ring 2 moves during the excavation of the test pit, and the test should be performed again. The horizontal plane in the lantern ring can be conveniently and certainly surveyed volume of pouring into the lantern ring, whether the lantern ring is in the horizontality, whether the lantern ring moves around digging the test pit through the cooperation of four scales to improve the accuracy of measurationing.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art can change, add or replace the above examples within the scope of the present invention.
Claims (4)
1. An auxiliary device that is used for method of watering to measure volume in situ density test which characterized in that: the soil body leveling device is provided with a measuring lantern ring (2), a fixing mechanism used for fixing the measuring lantern ring (2) on a leveled compact soil body is arranged at the lower end of the measuring lantern ring, four or more than four scale rods (4) are arranged on the inner wall of the measuring lantern ring (2), and the scale rods (4) are arranged in parallel to the measuring lantern ring (2) in the axial direction.
2. The auxiliary device for measuring volume by irrigation method in-situ density test according to claim 1, wherein: the fixing mechanism is provided with a fixing ring (1) arranged at the lower end of the measuring lantern ring (2), a plurality of fixing drill holes (5) are uniformly formed in the fixing ring (1), and fixing drill rods (6) are inserted into the fixing drill holes (5).
3. The auxiliary device for measuring volume by irrigation method in-situ density test according to claim 1, wherein: the upper end of the measuring lantern ring (2) is provided with an upper brim (3).
4. The auxiliary device for measuring volume by irrigation method in-situ density test according to claim 1, wherein: the inner diameter of the measuring lantern ring (2) is determined according to the maximum grain size of the engineering backfill material, is 2-3 times of the maximum grain size of the backfill material, and the height and the thickness of the measuring lantern ring (2) are respectively 15cm and 0.3 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922292587.9U CN211347820U (en) | 2019-12-19 | 2019-12-19 | Auxiliary device for measuring volume by irrigation method in-situ density test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922292587.9U CN211347820U (en) | 2019-12-19 | 2019-12-19 | Auxiliary device for measuring volume by irrigation method in-situ density test |
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| CN211347820U true CN211347820U (en) | 2020-08-25 |
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| CN201922292587.9U Active CN211347820U (en) | 2019-12-19 | 2019-12-19 | Auxiliary device for measuring volume by irrigation method in-situ density test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115479881A (en) * | 2022-10-25 | 2022-12-16 | 中国电建集团西北勘测设计研究院有限公司 | Method for measuring sand-gravel stratum pore ratio |
-
2019
- 2019-12-19 CN CN201922292587.9U patent/CN211347820U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115479881A (en) * | 2022-10-25 | 2022-12-16 | 中国电建集团西北勘测设计研究院有限公司 | Method for measuring sand-gravel stratum pore ratio |
| CN115479881B (en) * | 2022-10-25 | 2024-02-02 | 中国电建集团西北勘测设计研究院有限公司 | Method for measuring porosity of gravel stratum |
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